Quite frankly the MOST effective topical pain killer available. Restrain the Pain has the power to eradicate stubborn headaches and even migraines when caught early and reapplied as needed. Sore muscles, sprains, strains, lower back, neck and shoulder pain, knee pain and minor aches respind beautifully to this organic and safe remedy. With capsaicin, arnica, clove, camphor, peppermint, ginger and a few other pain relievers, this roll on is proving itself more effective than many top of the line CBD topicals.